Erin Margolin said she was 15 years old when her parents broke the news that they were splitting up. She said the news sent her into a deep depression, and then her dad dropped another bombshell.

"We sat down in the living room and immediately knew something was up," she said. "He announced, 'I am leaving your mother because I am gay.'"

She said the news shocked her so much that she developed trust issues and turned to therapy and medication. She said she even questioned her own sexuality.

"(I thought), 'There is this girl who I kind of like. Does that mean I'm gay?'" Margolin said.

Now grown, married and busy raising three daughters, she said she came across an interesting blog post that sounded similar to her own story.

"I thought, 'No way. There's no way somebody else is like me,' because I never before that point knew anyone else with a gay dad," she said.

The Gay Dad Project was born soon after that. Margolin said she teamed up with two others to create a way for people in her situation to reach out.

She said the Gay Dad Project has been therapeutic.

She said there's been someone else in her corner throughout the whole process. Her father, Larry Best, is very much in his daughter's life and he said he knows it could have been different when he came out.

"It was not an easy time, and it was not an easy thing to do to the people I love most in the world, but I reached a breaking point," he said. "I couldn't go another day. I couldn't breathe."

Wounds have also been mended between Best and his ex-wife and sons. He is also helping his daughter with the Gay Dad Project.

"I am so proud of my daughter for so many things, and one of the things I'm proud of her for is being able to survive all this," Best said.

The Gay Dad Project just received full funding for a documentary project and it also hopes to publish a book.